Some of the best finds I've had at the wrecking yard were actually tools people had left behind. Today it was a Snap-On U.S.A. 10 or 12" Screwdriver
The first thing I found at this one was a nearly new looking 10 or 12 ft chain w/ hooks on both ends.
Some reason I figured it was a "yard" chain and gave it to the counter when checking out. That probly went home with someone at the counter.
2 or 3 weeks ago while looking over a vehicle something hit the ground not 5 ft away, I thought someone had throwed something at me, stepped up onto the floor of the vehicle I was at and looked all around, no one was anywhere around. It was a cold windy and rainy day, I don't guess anyone else was even there. Went over there and picked it up, was a long handle 1/2" Williams Ratchet, just fell off the top of a tire into the gravel.
Just before that was a 10 or 12" Craftsman adjustable wrench left sitting on a radiator, soaking wet on a rainy day, no one around that day either